Sternocleidomastoid

ExRx.net > Kinesiology > Directory > Muscle

Other Names Sterno-mastoid Neck (Front / Sides) Neck Flexors Heads Anterior Fibers Posterior Fibers Movement Neck (Atlantooccipital & Atlantoaxial) Flexion [1] Both Sides Rotation [1, 2] Rotation right [Left Sternocleidomastoid] Rotation left [Right Sternocleidomastoid] Lateral Flexion [1, 2] Lateral flexion right [Right Sternocleidomastoid] Lateral flexion left [Left Sternocleidomastoid] Extension [2] Spine (Cervical) Flexion [1, 2] Both Sides Rotation [1, 2] Rotation right [Left Sternocleidomastoid] Rotation left [Right Sternocleidomastoid] Lateral Flexion [1, 2] Lateral flexion right [Right Sternocleidomastoid] Lateral flexion left [Left Sternocleidomastoid] Attachments Origin Sternum [1] Manubrium Clavicle (Medial) [2] Insertion Skull [1, 2] Mastoid Process Related Muscles Splenius